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EP0784073B2 - Films et feuilles - Google Patents

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Publication number
EP0784073B2
EP0784073B2 EP96120355A EP96120355A EP0784073B2 EP 0784073 B2 EP0784073 B2 EP 0784073B2 EP 96120355 A EP96120355 A EP 96120355A EP 96120355 A EP96120355 A EP 96120355A EP 0784073 B2 EP0784073 B2 EP 0784073B2
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EP
European Patent Office
Prior art keywords
films
polyolefin
method step
mfr
moulding composition
Prior art date
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EP96120355A
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German (de)
English (en)
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EP0784073A2 (fr
EP0784073B1 (fr
EP0784073A3 (fr
Inventor
Andreas Dr. Winter
Ernst Dr.-Ing. Hofmann
Gerhard Dr. Wieners
Bernd Dr. Bachmann
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Basell Polyolefine GmbH
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Basell Polyolefine GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/406—Bright, glossy, shiny surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon

Definitions

  • the present invention relates to a process for producing films and layers.
  • the present invention further relates to the use of films and layers obtainable by these processes.
  • EP-A 484 816 and EP-A 484 817 are heat-sealable packaging films known.
  • the films described consist of a polypropylene base layer and at least one cover layer of a propylene polymer, wherein the base layer of an isotactic polypropylene and the cover layer of a copolymer of an ⁇ -olefin having 2 to 8 carbon atoms is constructed with syndiotactic propylene.
  • EP-A 589 213 For example, a sealable polypropylene multilayer film and a process for its preparation and use is known.
  • the multilayer film comprises at least one base layer which predominantly contains polypropylene and at least one cover layer.
  • the cover layer is sealable and contains an isotactic homopolymer of an olefin.
  • WO 95/32242 describes films and layers of propylene / ⁇ -olefin copolymers prepared by means of metallocene catalysts.
  • EP-A 485 822 discloses olefin polymers prepared by (co) polymerization of an olefin with the aid of indenyl-based metallocene catalysts.
  • EP-A 496 260 describes a method of polypropylene compositions to produce polypropylene layers or films
  • the object of the present invention in contrast, is to provide an economical and environmentally friendly process for the production of films and layers with higher rigidity and strength as well as improved transparency and high gloss.
  • the polyolefin may contain up to 10% by weight, preferably up to 5% by weight, of ethylene or of a second olefin having the abovementioned meaning as comonomer.
  • the polyolefin molding compound has an MFR (230 / 2.16) of 0.3 to 260 g / 10 min, or an MFR (230/5) of 1 to 750 g / 10 min.
  • the MFR (230 / 2.16) is preferably 1 to 150, and more preferably 1.5 to 50 g / 10 min.
  • the MFR (230/5) is preferably 3 to 450, and more preferably 4.5 to 150 g / 10 min.
  • the molar mass is 100,000 to 500,000 g / mol, preferably 110000 to 400000 g / mol, particularly preferably 120000 to 340000 g / mol.
  • the polydispersity M w / M n is 1.5 to 10, preferably 2 to 5 and particularly preferably ⁇ 3.
  • the viscosity number is 100 to 450 cm 3 / g, preferably 110 to 350 cm 3 / g, especially preferably at 120 to 300 cm 3 / g.
  • the melting point is 120 to 165 ° C, preferably 130 to 162 ° C, particularly preferably 140 to 160 ° C.
  • the content of atactic polyolefin (etherextractable fraction) is ⁇ 2 wt .-%, preferably ⁇ 1 wt .-%, more preferably the content is ⁇ 0.5 wt .-%, most preferably the polymer contains ⁇ 0.3 wt. -% atactic polymer components.
  • the residual catalyst content is ⁇ 70 ppm, preferably ⁇ 30 ppm, more preferably ⁇ 20 ppm and, based on transition metals, ⁇ 50 ppm, preferably ⁇ 20 ppm, more preferably ⁇ 10 ppm.
  • the polyolefin may be a mono- or copolymer. If the polyolefin is a copolymer, the comonomer (s) is preferably incorporated in isolated form.
  • An ethylene / propylene copolymer for example, thus has z.
  • the polyolefin molding composition used in the process according to the invention contains substantially isotactic high molecular weight polypropylene.
  • the metallocene catalysts for producing such polyolefins are known. These are preferably zirconocenes which are substituted in a particular way on the indenyl ligand, such as, for example, in US Pat EP-A 576 970 . EP-A 545 303 . EP-A 549 900 . EP-A 485 822 or U.S. Patent 4,278,284 are described, which is hereby incorporated by reference. However, it is also possible to use any other metallocene catalyst which is capable of producing a polyolefin, therefore a polyolefin molding compound having the property profile given above.
  • Homopolymers with melting points ⁇ 160 ° C can not be produced with TiCl 4 catalysts.
  • the polymerization activities of such catalysts are well below those which can be realized with metallocene catalysts.
  • the inventive method also allows the production of monoaxially oriented film webs in the width range of 0.1 to 3000 mm. Again, strength, stiffness and toughness are particularly good.
  • the transparencies of the above-mentioned films are> 85%, preferably> 88% and particularly preferably> 90%.
  • the films and layers produced according to the invention have significantly better mechanical material properties, such as strength, rigidity and toughness, compared to conventional films and layers.
  • the films and layers produced can also be coextruded and laminated as layers and applied in thicknesses of 0.1 to 50 ⁇ m to other materials. They are designed as an intermediate layer.
  • a polyolefin molding compound having a particle size of from 20 ⁇ m to 5000 ⁇ m is used or prepared.
  • the molded polyolefin molding compound is melt blended and molded with at least one aggregate. This process step is referred to as compounding in the context of the invention.
  • the melt blended and molded material is melted at a temperature of 150 ° C to 300 ° C.
  • the molten material is cooled and thereby brought into the mold intermediate layer.
  • the molded material may be melted directly at a temperature of 150 ° C to 300 ° C without first being melt compounded with at least one aggregate in the compounding.
  • the resulting films and layers can be made up in accordance with the invention.
  • the films and layers are brought into a manageable form.
  • the material is edged cut to blanks or wound up as rolls.
  • the prefabricated films and layers can be processed into articles for the purposes of the invention.
  • the articles are used in private households, care and health care as well as in trade and industry.
  • the molded or compound-blended material can be homogenized and rolled and used in the molding process step. During homogenization, at least one additive can be added to the material.
  • nucleating agents In the process according to the invention nucleating agents, stabilizers, antioxidants, UV absorbers, light stabilizers, metal deactivators, free-radical scavengers, lubricants, emulsifiers, pigments, inorganic and organic dyes, carbon black, flame retardants, antistatic agents, chemical blowing agents, minerals, chopped glass fiber, synthetic fibers, such as carbon and aramid fiber, physical blowing agents such as butane, propane and higher hydrocarbons, noble gases, nitrogen, CFC, carbon dioxide or water vapor.
  • the material from the compounding can be dried and homogenized and then melted and then placed in a mold.
  • the molten material may be applied to a substrate such as metal, wood, polymeric material, natural or synthetic textiles or paper.
  • the films or layers can be oriented mono- or biaxially in the further processing.
  • the use of a polyolefin molding composition with at least one polyolefin for the production of films and layers is provided.
  • the films of the invention are particularly ecological because of the reduced thickness, since material can be saved.
  • Particularly rigid films made of a homogeneous material which can be produced according to the prior art only by heterogeneous or multilayer material combinations, allow due to the purity of a sort an environmentally friendly recycling. For example, edge trim from the production and cutting waste from the production of such films can be economically and ecologically advantageous returned to the production process.
  • Articles made of these materials can be advantageously glued or welded (high seam strength), printed (good durability of the surface activation, such as by corona treatment, fluorination or ozonization), have good barrier properties and have a particularly low resilience, as in the Application Turn-up foils for z. B. the packaging of candies is required. Narrow and highly longitudinally oriented film webs have a particularly low splicing behavior.
  • the low level of residual catalyst components, especially chlorine and transition metal contents, allow for the production of films, layers, sheets, and made-up materials with less tendency to yellow discoloration.
  • the low contents of low molecular weight or atactic constituents in the articles lead to excellent organoleptic properties, especially when used in food packaging.
  • FIG. 1 shows a flow chart of the process according to the invention for the production of films and layers of propylene homopolymer or propylene copolymer and for the production of articles from these materials.
  • a polymerization is carried out, as described in more detail in Examples 1 to 14.
  • process step (2) compounding is carried out with this powder.
  • the compounding includes a melt blend with aggregates and granulation.
  • the polymer to be processed may be mixed as a powder with one or more additives, such as nucleating agents, stabilizers, antioxidants, UV absorbers, light stabilizers, metal deactivators, free-radical scavengers, lubricants, emulsifiers, pigments, inorganic and organic dyes, carbon black flame retardants, antistatic agents or chemical blowing agents ,
  • the polymer to be processed may be further treated with one or more aggregates, such as minerals, chopped glass fiber or chopped synthetic fiber, e.g. Carbon or aramid fiber are mixed.
  • the polymer can be premixed with additives and then melted in one or more extruders.
  • the polymer can also be melted directly in one or more extruders and then be charged with additives and melt-blended. Thereafter, the melt is cooled and shaped, in particular granulated.
  • the granulated material may optionally be dried and homogenized in process step (9).
  • the workable material is melted in the process step (3) in one or more extruders at a temperature of 150 ° C to 300 ° C, preferably from 170 ° C to 270 ° C and more preferably from 180 ° C to 230 ° C.
  • the powder can also be used directly from process step (1) in process step (3).
  • further of the above-mentioned additives can be supplied in the extruder in the process step (3).
  • physical blowing agents present as gaseous substances can be introduced into the extruder. Physical blowing agents are e.g. Butane, propane and higher hydrocarbons, noble gases, nitrogen, CFC, carbon dioxide or water.
  • extruders are to be understood as meaning all mixing devices known in the prior art; see. Handbuch der Kunststoff-Extrusionstechnik, publisher F. Hensen, Carl Hanser Verlag 1986. As a rule, the extruder or extruders open onto tools such as a slot die or an annular die.
  • the layers can be combined in the tools themselves or in upstream adapters.
  • the molten material can also be applied to a substrate as a coating.
  • Substrate may be metal, wood, polymeric material, textiles of natural or synthetic fiber, paper and other material.
  • the molten material is cooled in the process step (4) and thereby in the form of a plate (sheet), film, such as flat film (cast or Glätttechniksfolie) or tubular film, for. As blown film, or coating (extrusion coating, lamination or lamination) brought.
  • the cooling and shaping can be done on one or more cascaded cooling rollers or in the gap of a calender with air or water. During shaping, the chill rolls and smoothing tools can strip and transport the melt at the same or up to fifteen times the speed as extruded from the tools.
  • the melt can also be withdrawn from a first cooling roll at the same speed as it is extruded from the tool, and then longitudinally longitudinally oriented and transported in the cooled state by means of downstream, fast-running rolls. Transportation and orientation can be done both after shaping, as well as with cooled and pre-fabricated material. In the case of composites and laminates, in a further process step (6), after heating to below the melting point of the material having the lowest melting point, mono- or biaxially oriented by means of suitable drawing devices.
  • this material can be oriented both mono- and simultaneously biaxially using over-pressure acting in the tubing in one or more sequentially inflated blisters.
  • the cooled material is made up in process stage (6).
  • the material which is present as a flat film, tubular film, laminate or plate, single-layer, multilayer or coating, wound or cut.
  • Powders from process step (1) or polymer from process step (2) can be plasticized and homogenized directly in a mixing mill (7), which is preceded by a calender (8) with 2 or more rolls. In both embodiments, the above-mentioned additives can be supplied in the mixing mill (7). Cooling and shaping takes place in the calender (8); see. Kopsch, calendering technique, Carl Hanser Verlag, Kunststoff 1978.
  • the cooled material is made up in process stage (6).
  • Ready-made material preferably wound material, can be processed into articles in several further process steps (9). In doing so, e.g. Bags, composites and laminates produced. All items can be printed, painted, laser-marked, labeled and labeled.
  • Table 1 M w Molar mass weight average (g / mol), determined by gel permeation chromatography M w / M n Polydispersity, determined by gel permeation chromatography II Isotactic index ( 13 C NMR spectroscopy) n iso Mean isotactic block length ( 13 C-NMR-Sp.) n PE Average block length polyethylene ( 13 C-NMR-Sp.) VZ Viscosity number measured at 135 ° C, ie 0.1% solution in decahydronaphthalene in capillary viscometer Mp.
  • the metallocene catalysts were prepared as in EP-A 0 576 970 .
  • the polymerizations should have only exemplary character.
  • the polyolefin molding composition according to the invention as long as it satisfies the definition of its properties, with any suitable metallocene catalyst system and any suitable polymerization process.
  • a dry 150 dm 3 reactor was purged with propylene and filled at 20 ° C with 80 dm 3 of a gasoline cut having the boiling range 100 to 120 ° C. After addition of 50 l of liquid propylene, 32 cm 3 of methylaluminoxane solution (solution in toluene, corresponding to 90 mmol of Al) were added. The reactor contents were brought to 50 ° C. and hydrogen was metered in until a content of 1.8% by volume of hydrogen was reached in the gas space of the reactor.
  • the yield was 19.5 kg.
  • Example 28 rac-dimethylsilylbis (2-methyl-4-naphthyl-1-indenyl) zirconium dichloride was supported on "F-MAO on SiO 2 ".
  • the polymerization was carried out with 30 g of the supported catalyst suspended in 250 ml of a dearomatized gasoline cut having the boiling range 100 to 120 ° C.
  • the amount of hydrogen used was 4.0 ⁇ 0.3 vol% and the polymerization temperature was 75 ° C.
  • the yield was 20.7 kg.
  • Example 1 was repeated, the amount of hydrogen was adjusted to 0.2 ⁇ 0.1 vol .-% and during the 15-hour polymerization time 500 g of ethylene were metered. The yield was 20.5 kg.
  • Example 9 was carried out with 350 g of ethylene and a hydrogen amount of 0.6 ⁇ 0.2 vol .-% repeated. The yield was 18.7 kg.
  • Example 10 was repeated with 500 g of 1-hexene. The yield was 17.3 kg.
  • Example 10 was repeated with 1.2 ⁇ 0.3 vol.% Hydrogen. The yield was 19.3 kg.
  • Example 5 was repeated with the metallocene rac-dimethylsilylbis (2-methyl-4,6-diisopropyl-1-indenyl) zirconium dichloride and a hydrogen amount of 0.7 ⁇ 0.1 vol .-% repeated.
  • the yield was 18.4 kg.
  • Example 1 was repeated with 2.1 ⁇ 0.2 vol .-% hydrogen. The yield was 22.7 kg.
  • Table 2 shows a comparison of Examples 1 to 14 with respect to the polymerization and the measured data of the polymers produced.
  • Table 2 B1 B2 B3 B4 B5 B6 B7 Propylene [I] 50 50 50 50 50 50 50 50 50 H 2 [vol.%] 1.8 ⁇ 3 2.4 ⁇ 4 3.0 ⁇ 5 3.5 ⁇ 3 1.0 ⁇ 2 0.7 ⁇ 2 1.2 ⁇ 2 Time [h] 1) 15 15 15 15 15 15 15 15 15 15 T [° C] 2) 60 60 60 60 60 60 60 60 60 60 60 Y.
  • Example 6 100 parts of polymer powder according to Example 6 were mixed with 0.05 part of Irganox 1010, 0.05 part of calcium stearate, 0.05 part of Hostanox PAR 24, compounded on an IDE 60 mm single-screw extruder and then granulated in a granulator.
  • the granules were extruded into a flat film having a width of 700 mm and a thickness of 85 microns at a melt temperature of 200 ° C on a Einschneckenflachfolienstrom (diameter 70 mm) with slot die, cooled on a chill roll at 28 ° C and wound after edge trimming.
  • Hostalen PPU 1780 F1 was among those mentioned in Example 15 Conditions produced a comparable flat film.
  • Example 15 and Comparative Example 151 were examined and compared by means of the test methods listed in Table 3. In this case, a tensile test was carried out on films according to DIN 53455. Table 3 test methods Example 15 VG 151 Tensile strength * [MPa] 31.4 26 Elongation at break * [%] 720 700 Pull modulus * [MPa] 1350 1120 MFR (230 / 2.16) on films [g / 10 min] 26.6 24.0 Tear resistance [mN / layer of foil] 1140 1010 * The table shows the values for the longitudinal measurement.
  • Example 16 The granule preparation of Example 16 was carried out as in Example 15. As the polymer powder, the product of Example 7 was used. From the granules, a flat film having a width of 1250 mm and a thickness of 100 microns at a melt temperature of 240 ° C was prepared. The film was quenched on a smooth chill roll at 18 ° C and wound up after edge trimming. An A-B-A coextrusion film was produced. The A layers of the film were extruded using a 70 mm diameter satellite extruder. The B-layer was extruded by means of a main extruder with a diameter of 105 mm.
  • the layers A, B and A were combined in front of the slot die in an adapter with a layer thickness ratio of 1: 8: 1.
  • the layer A was prepared from polymer powder according to Example 7 by the method of Example 15.
  • Layer B was prepared from Hostalen PPT 1770 F2 by the method of Example 15.
  • Comparative Example 161 was carried out as Example 16, wherein the layer A from Hostalen PPU 1780 F1 was prepared by the method of Example 15.
  • Comparative Example 162 was carried out as Example 16, wherein the layer A of Hostalen PPT 1770 F2 was prepared by the method of Example 15.
  • Comparative Example 163 was carried out in accordance with Example 16, wherein a monofilm of Hostalen PPT 1770 F2 was prepared by the method of Example 15.
  • Example 16 and Comparative Examples 161, 162 and 163 were tested and compared by means of the test methods listed in Table 4. In this case, a tensile test was carried out on films according to DIN 53455. Table 4 test methods Example 16 VG 161 VG 162 VG 163 Tear strength * [Mpa] 32 29 28 28 Elongation at break * [%] 620 570 530 600 Train modulus * [Mpa] 785 720 - - Total transmission [%] # 94 90 - 80 Tear resistance [mN / layer of foil] 2370 2080 1850 1950 * The table shows the values for the longitudinal measurement. # The measurement was carried out comparable to ASTM D 1003.
  • Example 10 100 parts of polymer powder were mixed according to Example 10 with 0.05 parts of Irganox 1010, 0.17 parts of silica, 0.17 parts of erucic acid amide 0.1 parts of Hostanox PAR 24 and 0.03 parts of calcium carbonate, compounded on an IDE 60 mm single-screw extruder and then granulated in a granulator.
  • the granules were converted into a flat film having a width of 180 mm and a thickness of 80 .mu.m at a melt temperature of 230 ° C on a coextrusion line (diameter 30 mm), which was operated as a monolayer extrusion system, extruded with slot die, on a smooth chill roll on Cooled to 28 ° C and unwound after edge trim.
  • Comparative Example 171 was carried out as Example 17, except that 100 parts of a non-inventive polymer powder having a C2 content of 4% were mixed with the remaining components (the polymer was prepared with a Ti catalyst and contained 3.7 wt .-% atactic polypropylene).
  • Example 17 and Comparative Example 171 were tested and compared by means of the test methods listed in Table 5.
  • a tensile test on films according to DIN 53455, a gloss measurement at an angle of 20 ° according to DIN 67530 and a measurement of transparency and haze according to ASTM D 1003 were carried out.
  • Each 100 parts of polymer powder according to Examples 10 and 1 were mixed with 0.05 parts of Irganox 1010, 0.17 parts of silica, 0.17 parts of erucic acid amide 0.1 parts Hostanox PAR 24 and 0.03 parts of calcium carbonate, on an IDE 60 mm Single-screw extruder compounded and then granulated in a granulator.
  • the granules were converted to an A-B coextrusion film having a width of 180 mm and a thickness of 80 ⁇ m at a melt temperature of 230 ° C on a coextrusion line (diameter 30 mm).
  • the A layer of the film was extruded by means of a 25 mm diameter satellite extruder.
  • the B-layer was extruded by means of a main extruder with a diameter of 30 mm. Layers A and B were combined in a coextrusion die at a 1: 9 layer thickness ratio.
  • the layer A was prepared from polymer powder according to Example 10 by the method of Example 17.
  • the layer B was prepared from polymer powder according to Example 1 by the method according to Example 17.
  • Comparative Example 181 was carried out as Example 18, wherein layers A and B were prepared by mixing a polymer powder of a homopolypropylene with the remaining ingredients.
  • Example 18 and Comparative Example 181 were tested and compared by means of the test methods listed in Table 6. In this case, a tensile test was carried out on films according to DIN 53455 and a gloss measurement at an angle of 20 °. Table 6 test methods Example 18 Comparative Example 181 Yield stress * [MPa] 18.1 18.1 Tear strength * [Mpa] 30.6 27.1 Elongation at break * [%] 630 507 Train modulus * [Mpa] 690 600 Shine, 20 ° 168 117 * The table shows the values for the longitudinal measurement.
  • Example 17 was repeated, but as a polymer powder, a material according to Example 14 was used.
  • the analogous to Example 17 investigations of the film are summarized in Table 8.
  • Example 17 was repeated, but as the polymer powder, the materials according to Example 9 (Example 21), Example 13 (Example 22), Example 11 (Example 23) and Example 12 (Example 24) were used.
  • Example 17 was repeated, but as a polymer powder, a material according to Example 8 was used.
  • the analogous to Example 17 investigations of the film are summarized in Table 8.
  • Example 15 was repeated, but the polymer according to Example 1 (Example 26), Example 2 (Example 27), Example 3 (Example 28), Example 4 (Example 29) or Example 5 (Example 30) was used as the polymer powder.
  • the analogous to Example 17 investigations of the films are summarized in Table 9.
  • Table 9 test methods Ex. 26 Ex. 27 Ex. 28 Ex. 29 Ex. 30 Tear resistance [Mpa] 36.7 38.1 40.3 43.5 29.8 Elongation at break [%] 710 720 800 930 715
  • Example 31 100 parts of polymer powder according to Example 1 (Example 31) are mixed with 0.05 part of Irganox 1010, 0.1 part of Hostanox PAR24, 0.03 part of calcium carbonate and 0.05 part of sodium benzoate, compounded on an IDE 60 mm single-screw extruder and then in a Granulator granulated.
  • the granules were extruded into a flat film having a width of 300 mm and a thickness of 1200 ⁇ m at a melt temperature of 230 ° C on a Einschneckenflachfolienstrom (diameter 60 mm) with a plate die.
  • the film is cooled on a roller in a water bath.
  • Example 15 The procedure is as in Example 15, the granules produced there is mixed with 1.5 wt .-% Hydrocerol HP40P (blowing agent, consisting of a polymer blend and citric acid having a decomposition temperature at 160 ° C) and to a gebilldeten by means of this foaming foam film a width of 700 mm and a thickness of 130 microns at a melt temperature of 190 ° C on a Einschneckenflachfolienstrom (diameter 70 mm) extruded with slot die, cooled on a chill roll at 40 ° C and wound after edge trimming.
  • Hydrocerol HP40P blowing agent, consisting of a polymer blend and citric acid having a decomposition temperature at 160 ° C
  • a gebilldeten by means of this foaming foam film a width of 700 mm and a thickness of 130 microns at a melt temperature of 190 ° C on a Einschneckenflachfolienstrom (diameter

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymerization Catalysts (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Wrappers (AREA)
  • Organic Insulating Materials (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)

Claims (9)

  1. Procédé pour la production de feuilles et de couches,
    (1) une masse de moulage en polyoléfine présentant une granulométrie de 20 µm à 5000 µm étant utilisée,
    (2) la masse de moulage en polyoléfine étant mélangée, en masse fondue, avec au moins un additif et façonnée,
    (3) le matériau étant fondu à une température de 150°C à 300°C,
    (4) le matériau fondu étant refroidi et amené sous forme d'une couche intermédiaire,
    la masse de moulage en polyoléfine contenant essentiellement du polypropylène isotactique de haut poids moléculaire présentant une masse molaire de 100 000 à 500 000 g/mole, et la polyoléfine étant préparée au moyen de catalyseurs de type métallocène.
  2. Procédé selon la revendication 1, la masse de moulage en polyoléfine contenant au moins un polypropylène comprenant jusqu'à 10% en poids d'éthylène ou une deuxième oléfine comme comonomère.
  3. Procédé selon l'une ou plusieurs des revendications 1 à 2, la masse de moulage en polyoléfine présentant un indice de fluidité à chaud (MFR - 230/2,16) de 0,3 à 260 g/10 min.
  4. Procédé selon les revendications 1 à 3, la feuille ou la couche étant confectionnée dans une étape de procédé (5).
  5. Procédé selon la revendication 5, le matériau provenant des étapes de procédé (4) ou (5) étant transformé en objet dans une étape de procédé (6).
  6. Procédé selon l'une ou plusieurs des revendications 1 à 5, le matériau de l'étape de procédé (1) ou (2) étant homogénéisé dans une étape de procédé (7) et laminé dans une étape de procédé (8) et le matériau étant ensuite utilisé dans l'étape de procédé (4).
  7. Procédé selon l'une ou plusieurs des revendications 1 à 6, au moins un matériau selon l'étape de procédé (3) étant appliqué sur un substrat tel qu'un métal, du bois, un matériau polymère, des textiles de fibres naturelles ou synthétiques ou du papier.
  8. Procédé selon l'une ou plusieurs des revendications 5 à 7, le matériau étant orienté monoaxialement ou biaxialement dans l'étape de procédé (6).
  9. Utilisation de feuilles et de couches pouvant être obtenues selon un procédé selon l'une ou plusieurs des revendications 1 à 8 pour la production d'objets.
EP96120355A 1995-12-27 1996-12-18 Films et feuilles Expired - Lifetime EP0784073B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19548788 1995-12-27
DE19548788A DE19548788A1 (de) 1995-12-27 1995-12-27 Folien und Schichten

Publications (4)

Publication Number Publication Date
EP0784073A2 EP0784073A2 (fr) 1997-07-16
EP0784073A3 EP0784073A3 (fr) 1999-07-28
EP0784073B1 EP0784073B1 (fr) 2002-09-11
EP0784073B2 true EP0784073B2 (fr) 2012-06-06

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US (1) US6548628B2 (fr)
EP (1) EP0784073B2 (fr)
JP (1) JP3745061B2 (fr)
AT (1) ATE223946T1 (fr)
BR (1) BR9606171A (fr)
CA (1) CA2193320A1 (fr)
DE (2) DE19548788A1 (fr)
TW (1) TW440582B (fr)
ZA (1) ZA9610856B (fr)

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US6316547B1 (en) 1997-09-11 2001-11-13 The Procter & Gamble Company Masterbatch composition
EP0905043A1 (fr) * 1997-09-27 1999-03-31 The Procter & Gamble Company Sachet contenant une quantité de produit supérieure à la normale et son procédé de fabrication
DE29822095U1 (de) 1998-12-11 1999-04-01 Elbtal Folien GmbH, 01640 Coswig Kunststoff-Folie
JP4785733B2 (ja) * 2004-03-19 2011-10-05 リンテック株式会社 自動車ブレーキディスクアンチラストフィルム
US20070120283A1 (en) * 2005-10-18 2007-05-31 Applied Extrusion Technologies, Inc. Polypropylene films employing recycled commercially used polypropylene based films and labels
EP2851196A1 (fr) * 2008-05-05 2015-03-25 A. Schulman, Inc. Feuilles de polyoléfine multicouche transparentes sur couleur et structure de support laminée
EP2420373A3 (fr) 2010-08-20 2012-06-06 Rundpack AG Procédé de fabrication d'une pièce de formage opaque
EA026322B1 (ru) * 2011-08-30 2017-03-31 Тотал Ресерч & Технолоджи Фелай Нетканые материалы, содержащие статистический сополимер пропилена
DE102012219593B4 (de) 2011-10-25 2024-06-20 Vector Foiltec Gmbh Folienelement für ein eine Folie aufweisendes Gebäudeumhüllungselement sowie Verfahren und Vorrichtung zur Herstellung eines derartigen Gebäudeumhüllungselementes

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EP0598626A2 (fr) † 1992-11-19 1994-05-25 Mitsui Petrochemical Industries, Ltd. Composition à base d'éthylène copolymère
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WO1995027005A1 (fr) † 1994-03-31 1995-10-12 Mobil Oil Corporation Melanges de resine a base de polyethylene basse densite lineaire
EP0676421A1 (fr) † 1994-04-07 1995-10-11 BP Chemicals Limited Procédé de polymérisation et polyoléfines ainsi obtenues

Also Published As

Publication number Publication date
DE19548788A1 (de) 1997-07-03
JPH09216972A (ja) 1997-08-19
US6548628B2 (en) 2003-04-15
ATE223946T1 (de) 2002-09-15
EP0784073A2 (fr) 1997-07-16
DE59609652D1 (de) 2002-10-17
BR9606171A (pt) 1998-08-18
TW440582B (en) 2001-06-16
EP0784073B1 (fr) 2002-09-11
EP0784073A3 (fr) 1999-07-28
JP3745061B2 (ja) 2006-02-15
US20020182428A1 (en) 2002-12-05
CA2193320A1 (fr) 1997-06-28
ZA9610856B (en) 1997-06-27

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